A forensic approach to understanding diet and habitat use from stable isotope analysis of (avian) claw material

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Subfields: Ecology

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Applications of stable isotope analyses to avian ecology (2008, background): “By contrast, tissues such as feathers and claws will provide data spanning the period over which they were grown, often several weeks to months (Bearhop et al. 2003, Pearson et al .”
Determining trophic niche width: a novel approach using stable isotope analysis (2004, background): “Finally, tissues that are metabolically inert after formation, such as hair, feathers, baleen or claws, will preserve this record indefinitely (Schell, Saupe & Haubenstock 1989; Hobson 1999a; Bearhop et al. 2003).”
Isotopic reconstruction of marine food webs using cephalopod beaks: new insight from captively raised Sepia officinalis (2006, background): “Fortunately, for a number of applications, nondestructive sampling can be done using whole or cellular and plasma fractions of blood (Hobson and Clark 1993) and metabolically inactive tissues such as hair, feathers, and nails (Mizutani et al. 1990; Bearhop et al. 2003; Mazerolle and Hobson 2005).”